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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 30 hours after estrus begins






2. 147 days






3. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






4. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






5. FEED






6. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






7. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






8. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






9. Duct through penis that carries sperm and urine






10. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






11. Superior genes are _______ to multiply






12. Sperm is produced here






13. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






14. Duct through penis that carries sperm and urine






15. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






16. Scar tissue plugs up chambers of udder






17. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






18. Larger the cow - more milk is produced; smaller the cow - less milk is produced






19. Larger the cow - more milk is produced; smaller the cow - less milk is produced






20. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract






21. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge






22. 336 days






23. Allows extension of penis without fibro-elastic penis






24. ~305 days (altough often longer due to breeding difficulties)






25. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells






26. Failure to have one testis (gonad) to descend






27. When are steers and heifers weaned from bottle feeding?






28. 19-23 (21) days






29. Can survive ~7 days in cow. vast majority <48 hours






30. Contains and regulates the temp of the testes for sperm production






31. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






32. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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33. Urinary calculi.






34. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






35. (male) pushes the testes upward toward the body for warmth or protection






36. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






37. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






38. FEED






39. Way to know everything is alright with the breeding male






40. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






41. Birthing process (termination of gestation)






42. 265-285 days






43. 4-6 days






44. Allows extension of penis without fibro-elastic penis






45. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






46. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






47. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






48. Milk is 15% ________ and 85% __________.






49. Parturition is controlled by...






50. 2 month growth cycle. stored in the epididymis of the bull